EP4014804A1 - Wärmetauscher für maschine zur herstellung von aufgussgetränken - Google Patents

Wärmetauscher für maschine zur herstellung von aufgussgetränken Download PDF

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Publication number
EP4014804A1
EP4014804A1 EP21215047.8A EP21215047A EP4014804A1 EP 4014804 A1 EP4014804 A1 EP 4014804A1 EP 21215047 A EP21215047 A EP 21215047A EP 4014804 A1 EP4014804 A1 EP 4014804A1
Authority
EP
European Patent Office
Prior art keywords
box
shaped body
heat exchanger
seats
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP21215047.8A
Other languages
English (en)
French (fr)
Other versions
EP4014804B1 (de
Inventor
Gionata Capitani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Capitani SRL
Original Assignee
Capitani SRL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Capitani SRL filed Critical Capitani SRL
Publication of EP4014804A1 publication Critical patent/EP4014804A1/de
Application granted granted Critical
Publication of EP4014804B1 publication Critical patent/EP4014804B1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/54—Water boiling vessels in beverage making machines
    • A47J31/542—Continuous-flow heaters

Definitions

  • the present invention concerns the field of machines for making infused beverages such as coffee, tea, herbal teas, chocolate, etc. starting from a capsule or pod containing an aromatic substance.
  • the present invention concerns a heat exchanger for machines for making infused beverages.
  • the heat exchangers of machines for making infused beverages are typically made of aluminum and comprise a duct, for the passage of water, made by molding or by removing material from the aluminum itself and a coil functionally placed in contact with the duct to transfer heat to the latter in order to heat the liquid flow, typically water, circulating therein.
  • Such type of heaters is generally bulky and made in two pieces which can be coupled, each piece making a half-duct.
  • This method of implementation allows, among other, to make exchangers of reduced size and is thus preferable.
  • the Applicant has thus also addressed the problem of making a heat exchanger which reduces the inner volumes of the machine for preparing infused beverages by optimizing the coupling between the thermal probes and the exchanger.
  • both types of heat exchangers described above currently have ducts for the inflow and outflow of the liquid to be heated, which are formed by tubular lengths extending from the box-shaped body.
  • the plastic or rubber tubes of the hydraulic circuit of the machine are mounted on the latter by mechanical interference.
  • connection or couplings between the plastic or rubber tubes and the tubular inlet/outlet lengths of the exchangers do not seem optimal.
  • the plastic or rubber tubes wear out, thus generating leakages right at the connection or coupling.
  • the Applicant has thus addressed the problem of making a heat exchanger for machines for preparing infused beverages of reduced size which solves the food contamination problems of traditional exchangers, which improves the coupling between thermal probes and the exchanger and which simultaneously reduces the occurrence of wear problems of the plastic or rubber tubes at the inlets/outlets of the liquid from/to the exchanger.
  • the invention in a first aspect thereof, concerns a heat exchanger for machines for preparing infused beverages
  • a heat exchanger for machines for preparing infused beverages comprising a box-shaped body, a duct for the passage of a liquid to be heated, said duct being made of steel and being embedded in the box-shaped body, a heating element placed in contact with said duct for the passage of the liquid; said duct extending according to a curvilinear path inside said box-shaped body and having an inlet and an outlet of the liquid to be heated, characterized by comprising at least one support for constraining said box-shaped body inside the machine for preparing infused beverages; said at least one support being made of insulating material; said support making, together with said box-shaped body, a seat for accommodating heat sensors.
  • the present invention can have at least one of the preferred characteristics described hereunder.
  • said at least one support comprises first constraining means inside the machine for preparing the infused beverage; and second constraining means for constraining the box-shaped body to said support; said first constraining means being separated and not in contact with said second constraining means.
  • the box-shaped body has two half-seats of said accommodating seats.
  • the half-seats being made on the side of the box-shaped body facing said support, when the heat exchanger is mounted.
  • the half-seats comprise grooves made on a side of the box-shaped body.
  • the half-seats comprise detents for locking said heat sensors therein.
  • the support also has two half-seats of said accommodating seats. The half-seats of the support being made on a side of the support facing the box-shaped body, when the heat exchanger is mounted.
  • the half-seats comprise grooves made on a side of the box-shaped body.
  • the heat exchanger comprises two push-in devices for coupling said duct to two small tubes of the hydraulic circuit of the machine for preparing infused beverages; each push-in device comprising at least one tubular bushing provided with an inlet/outlet for a small tube of the hydraulic circuit of the machine for preparing infused beverages and with removable constraining means of the small tube inside said tubular bushing.
  • the removable constraining means comprise a fork and the tubular bushing comprises a side surface comprising a slot passing through the insertion of the fork; an inlet opening for a rubber or plastic tube of the hydraulic circuit; the small tube having two sealing rings spaced to form a seat for the fork; an outlet opening shaped to be coupled to an inlet/outlet end of the liquid to be heated; the tubular bushing being partially drowned in the box-shaped body and extending from the latter such as the slot is positioned outside with respect to the box-shaped body.
  • the tubular bushing is made of steel.
  • a heat exchanger in particular for machines for preparing infused beverages, for example by means of a capsule containing an aromatic substance, is denoted by the numerical reference 10.
  • the heat exchanger 10 comprises a box-shaped body 1, a duct 2 for the passage of a liquid to be heated, made of steel and extending with a curvilinear pattern, preferably sinusoidal, inside the box-shaped body 1.
  • the box-shaped body 1, preferably parallelepiped-shaped, is made of aluminum.
  • the duct 2 extends inside the box-shaped body 1 between an inlet and an outlet of the liquid to be heated, which are respectively placed in a top area and in a bottom area of the box-shaped body 1.
  • the duct 2 is in contact, in a known way, with a heating element, such as an electric coil 30 which, by transferring heat to the duct 2, allows to heat the water circulating therein.
  • a heating element such as an electric coil 30 which, by transferring heat to the duct 2, allows to heat the water circulating therein.
  • the heat exchanger 10 further comprises two push-in devices 3 for coupling the duct 2 to two small tubes 12, 13, preferably made of plastic or rubber, of the hydraulic circuit of the machine for preparing beverages.
  • the tubes 12, 13 of the hydraulic circuit are respectively entering and exiting the heat exchanger 10.
  • each push-in device 3 comprises a hollow tubular bushing 4 comprising, at an end, an inlet/outlet for a small tube 12, 13 and, at the opposite end, an interface for the duct 2.
  • the tubular bushing 4 further has a side surface 8 extending between the two ends and a through slot 5 made on the side surface.
  • the tubular bushing 4 is partially drowned in the box-shaped body 1 such as the through slot 5 and the inlet/outlet end for a small tube 12/13 come out of the latter.
  • the through slot 5 is shaped to accommodate a removable fork 6, preferably made of metal, comprising two prongs 7 joined together at an end and spaced such as to house a small tube 12, 13 between them.
  • the two prongs 7 are thus placed at a distance substantially equal to the diameter of the small tubes 12, 13.
  • the small tube 12, 13 is intercepted and constrained by mechanical interference in the tubular bushing 4 by inserting the fork 6 into the through slot 5.
  • the small tube 12, 13 is free to come out of the tubular bushing 4 when the fork is removed from the through slot 5.
  • two sealing rings 15, such as two O-rings mounted on the small tube 12,13 at an appropriate distance, and two metal retaining rings 26 are provided.
  • the two retaining rings 26 counteract the sliding of the sealing rings 15 on the small tube 12, 13.
  • Each tubular bushing 4 being preferably made of steel.
  • the heat exchanger does not have the push-in devices 3.
  • the heat exchanger 10 has a particular support 17 shaped to constrain the box-shaped body 1 inside the machine 100 for preparing infused beverages.
  • the support 17 is made of insulating material, such as for example plastic or silicone, and the transmission of heat from the heat exchanger to the machine itself is thus prevented this way.
  • the support 17 is like an inverted U-shaped bracket 18 preferably made of plastic and comprising first constraining means shaped to constrain the support 17 itself to the machine 100 for preparing infused beverages, and second constraining means 19 for constraining the box-shaped body 1 to the support 17.
  • the first constraining means 16 being separated and not in contact with the second constraining means 19 such as to prevent, or anyhow limit, the transmission of heat between the exchanger 1 and the machine 100 for preparing infused beverages.
  • the support 17 forms, together with the box-shaped body 1, the seats 20 for accommodating the heat sensors 21 shown in figure 2 .
  • the box-shaped body 1 has two half-seats 22 of said accommodating seats 20.
  • the half-seats 22 are made on the side or face of the box-shaped body 1 facing the support 17, when the heat exchanger 10 is mounted.
  • the half-seats 22 are achieved from the grooves 23 with semicircular section, which are made on a side of the box-shaped body 1.
  • the half-seats 22 made on the box-shaped body 1, as better shown in figure 3 comprises detents 24 for locking the heat sensors 21 therein.
  • the detents 24 are arranged at a distance such as to allow the insertion of a heat sensor 21 (not shown in figure 3 ) therein and which is preferably constituted by a tubular element.
  • the accommodating seats 20 for accommodating the heat sensors 21 further comprise two further half-seats 25 made on the support 17.
  • the half-seats 25 are made on a side of the support 17 facing the box-shaped body 1, when the heat exchanger 10 is mounted.
  • the half-seats 25 also comprise the grooves 26 with semicircular section, which are made on a side of the support 17.
  • the half-seats 25 are shaped and arranged such as to be combined with the half-seats 22, such as to form the seats 20, when the heat exchanger 10 is mounted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP21215047.8A 2020-12-21 2021-12-16 Wärmetauscher für maschine zur herstellung von aufgussgetränken Active EP4014804B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT202000031604 2020-12-21

Publications (2)

Publication Number Publication Date
EP4014804A1 true EP4014804A1 (de) 2022-06-22
EP4014804B1 EP4014804B1 (de) 2024-05-01

Family

ID=74858650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21215047.8A Active EP4014804B1 (de) 2020-12-21 2021-12-16 Wärmetauscher für maschine zur herstellung von aufgussgetränken

Country Status (1)

Country Link
EP (1) EP4014804B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046367A1 (de) * 1999-04-20 2000-10-25 Seb S.A. Heizkörper für eine Espresso-Kaffeemaschine
WO2016016857A1 (en) * 2014-07-31 2016-02-04 I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini Heat exchanger
CN110215120A (zh) * 2019-06-20 2019-09-10 广东特拉斯科技发展有限公司 一种即热式可调温发热体组件
CN111603046A (zh) * 2019-02-22 2020-09-01 叶秀山 一种咖啡机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046367A1 (de) * 1999-04-20 2000-10-25 Seb S.A. Heizkörper für eine Espresso-Kaffeemaschine
WO2016016857A1 (en) * 2014-07-31 2016-02-04 I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini Heat exchanger
CN111603046A (zh) * 2019-02-22 2020-09-01 叶秀山 一种咖啡机
CN110215120A (zh) * 2019-06-20 2019-09-10 广东特拉斯科技发展有限公司 一种即热式可调温发热体组件

Also Published As

Publication number Publication date
EP4014804B1 (de) 2024-05-01

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